Ads warning of the potential blackout have aired on some Disney channels.

“Our proven history of providing extraordinary value to consumers and distributors is unmatched,” Disney said in a statement. “Our negotiations continue in earnest, and we remain optimistic that we can reach a deal.”

ESPN has the TV rights for the College Football Playoff National Championship game and an NFL playoff game in January.

Some Fios customers took to Twitter to share their displeasure about potentially losing the Disney channels.

Hey @verizon and @Disney, get yourselves together and negotiate a fair deal so millions of people can watch sports, if there is no deal and you guys continue to stall, maybe it's time to switch networks. I'm not alone in saying this.

Long time @verizon#fios customer. I side with @disney@espn and it’s not a close call. #espn. Sports programming is why I haven’t cut the cord and why I pay a premium for #verizon. It’s also why I switched to verizon way back when. Don’t try me on 1/1/19 verizon!

Wowww, as if #Disney doesn’t have enough money, they’re now demanding more money from #Verizon to steer people toward their own streaming services. I don’t want 1000 subscription services for different channels — that’s insane!